/**
 * @author      OA Wu <comdan66@gmail.com>
 * @copyright   Copyright (c) 2015 OA Wu Design
 */

@mixin paper () {
  position: relative;

  &:before, &:after {
    z-index: -1;
    position: absolute;
    display: inline-block;
    content: "";
    bottom: 15px;
    left: 10px;
    width: 50%;
    max-width:300px;
    background: #777;
    max-height: 100px;
    min-height: 10px;

    @include transform(rotate(-3deg));
    @include box-shadow(0 15px 10px #777);
  }
  &:after {
    right: 10px;
    left: auto;

    @include transform(rotate(3deg));
  }
}
